(B)A major stationary source as defined in section
7602 of this title or part D of subchapter I of this chapter.

(3) Schedule of compliance

The term “schedule of compliance” means a schedule of remedial measures, including an enforceable sequence of actions or operations, leading to compliance with an applicable implementation plan, emission standard, emission limitation, or emission prohibition.

(4) Permitting authority

The term “permitting authority” means the Administrator or the air pollution control agency authorized by the Administrator to carry out a permit program under this subchapter.